Department of Hautes-Pyrenees. 1 79 



Height of the Principal Hamlets of the " Commune of Luz" 



.Height of some uninhabited points. 



t The Annuaire gives the height of three inhabited places of the valley of 

 Bareges above the level of the sea, especially that of Gavarnie, its height 

 (1444 metres), differs considerably from that given by us. But to what part 

 of the village does the height refer ? Certainly not to the inn (the point of 

 which we have given the height on account of its being the head-quarters of 

 those who visit the principal branch of the valley, nor to the church, as we 

 have determined along with Mr Forbes, Professor of Natural Philosophy in 

 the University of Edinburgh. 



J Here, too, there is a considerable difference between our height and that 

 of the Annuaire (1465 metres). But to what point does the height given refer ? 



I believe that there is some mistake regarding the calculation of the height 

 of the Breche. In a private letter, M. de Raffetot mentions that he calcu- 

 lated it from my observations, and he communicated to me his corresponding 

 ones at Luz. Calculating by the tables in the Annuaire, I find the height 

 above the inn at Luz 2117 metres, or 944 English feet. If to this we add 

 the height of the inn at Luz (only eight feet below the church), which is 2416 

 feet, we obtain 9360 for the height of the floor of the Breche above the sea. 

 According to Charpentier, it is 9337 English feet J. D. F. 



|| The height of the Pic du Midi agrees within eight feet with that given by 

 Reboul and Vidal J. D. F. 



f 6930. Ramond J. D. F. 



'* To this I may add the elevation of Cauteretz, Although it belongs to a 

 different valley. 'The principal street is 680 feet above Luz, or 3096 above 

 the sea. J. D. F. 



